×Ô¶¯¿ØÖÆרҵӢÓï

unit one getting to know electricity¡¡1

section¡¡one warming - up¡¡2

section¡¡two dialogue¡¡3

section¡¡three passage¡¡8

section¡¡four translation skills¡¡13

section¡¡five writing¡¡17

section¡¡six grammar¡¡18

unit¡¡two the discovery of electricity¡¡23

section¡¡one warming - up¡¡24

section¡¡two dialogue¡¡25

section¡¡three passage¡¡29

section¡¡four translation skills¡¡34

section¡¡five writing¡¡37

section¡¡six grammar¡¡40

unit¡¡three electrical terms¡¡45

section¡¡one warming - up¡¡46

section¡¡two dialogue¡¡46

section¡¡three passage¡¡51

section¡¡four translation skills¡¡55

section¡¡five writing¡¡59

section¡¡six grammar¡¡61

unit¡¡four electrical appliances &

electronic¡¡devices¡¡65

section¡¡one warming - up¡¡66

section¡¡two dialogue¡¡66

section¡¡three passage¡¡72

section¡¡four translation skills¡¡76

section¡¡five writing¡¡81

section¡¡six grammar¡¡83

unit¡¡five safety first¡¡87

section¡¡one warming-up¡¡88

section¡¡two dialogue¡¡88

section¡¡three passage¡¡92

section¡¡four translation skills¡¡96

section¡¡five writing¡¡100

sect